Replace the highlighted words in the sentence with the most appropriate set of words that best fit the context of the sentence. If the sentence is correct as it stands, select “No improvement required”.

The professor’s (A) salad explanation of the theory left the students (B) evaporated, and they (C) applauded to ask several (D) trapezoids during the discussion.

The correct answer is 'Option 1'.

Key Points

• The word "salad" (A) is contextually incorrect. It is likely a misplacement or error for “detailed,” which logically fits with “explanation of the theory.”
• "Evaporated" (B) is used incorrectly. It is a physical process and does not suit the emotional or mental state of the students. The correct term is “confused.”
• "Applauded" (C) typically means clapping to show appreciation, which doesn’t fit here. “Hesitated” better matches the students’ uncertain state due to confusion.
• "Trapezoids" (D) is a mathematical shape and completely out of context. The suitable word is “questions,” as it fits a classroom or academic setting.

Hence, the correct answer is 'Option 1'.

Correct Sentence: The professor’s detailed explanation of the theory left the students confused, and they hesitated to ask several questions during the discussion.

Additional Information

• Option 2: "Logical, inspired, attempted, experiments" – while slightly relevant, it doesn’t address the confusion or hesitation that fits the context.
• Option 3: "Vague, distracted, avoided, observations" – though “vague” might work, “distracted” and “observations” do not logically fit the sentence’s flow.
• Option 4: "Scientific, delighted, volunteered, essays" – these words collectively create a positive tone, which contradicts the negative emotion of confusion conveyed in the sentence.
• Option 5: “No improvement required” is incorrect because the original sentence includes nonsensical and out-of-context words such as "salad," "evaporated," and "trapezoids."